Commit 0bae5cf2 authored Jul 04, 2019 by Weihang Li Committed by David S. Miller Jul 05, 2019

net: hns3: check msg_data before memcpy in hclgevf_send_mbx_msg



The value of msg_data may be NULL in some cases, which will cause
errors reported by some compiler.

So this patch adds a check to fix it.

Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent c09ba484

drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -102,6 +102,7 @@ int hclgevf_send_mbx_msg(struct hclgevf_dev *hdev, u16 code, u16 subcode,
		~HCLGE_MBX_NEED_RESP_BIT;
		req->msg[0] = code;
		req->msg[1] = subcode;
		if (msg_data)
		memcpy(&req->msg[2], msg_data, msg_len);

		/* synchronous send */